The key word is "allegations", so at this point it has not been something "proven" to be true. That being said, the fact that he has been fired according to this article can mean there was enough damming evidence that it was deemed necessary for him to be removed from his position. There really are no specifics in this article as to what he may have done that was considered abusive behaviors towards the employees or even how many employees stepped forward to complain. We also have not had a chance to hear his side of this challenge.

For myself, the only thing I could say is "it may be due to" as with the little information that has been presented all one can do at this point is speculate what it could be due to. How I "feel" about this is that it's important to make sure to not negate whatever this individual has contributed to shedding light on and bringing awareness to what individuals are challenged with when they struggle with PTSD and even childhood trauma and the affect that can have on someone. Clearly this is something this individual has been very passionate about and "perhaps" he got angry when employees did not follow his program when interacting with patients. All we can do is wait and "hear" his side of this story.